7
PAD-V
Using the machine
INSTRUCTION
MANUAL
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S.r.l.
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7.2.3 Ice formation on the fans
If the plant is stopped during cold weather or snow, a thin sheet of ice may form between the inside of
the fan base and the end of the fan blades.
If the ice forms a single block between rotor and ferrule, when the fan restarts it is blocked, thus
causing the motor to burn out or, sometimes, one or more blades or the fiberglass ferrule to break.
It is recommended to ALWAYS check, after a winter stop and especially in case of snowfalls, that the
fan blades are not blocked by ice.
WARNING
Never cover the fan with covers, roofs or other forms of protection, as this is pointless
(all the motors are hermetically sealed): the electric motor may overheat if the fan is
allowed to run without proper exhaust.
7.2.4 Use in dusty and polluted environments
During its operation, the fans of the adiabatic cooler suck in a considerable amount of air, which
crosses the internal parts of the cooler itself.
As far as possible, you should avoid installing the cooler in particularly dusty areas, as well as in close
proximity to trees which may release, in some periods of the year, pollen or leaves that can be sucked
in by the fans.
Solid particles, in general, have no chemical activity and the resulting pollution is merely physical: the
scheduled purge and refreshment cycles are in any case sufficient for keeping the quality of the water
in conditions that do not create problems for the internal wetting circuit.
Instead, the gaseous or liquid compounds, once dissolved in water, have a significant chemical activity
and may cause both corrosion phenomena and favour the formation of solid conglomerates with other
foreign bodies found in the air or in the water.
Check the condition of the humidifier pack even more frequently and, if it is dirty
or clogged, clean or replace it.
